Conveyer



.5. la.I ToLMAN, ,1R

CONVEYER Filed July 5, 1924 3 Sheets-Sheet .1

Aug. 2l, 1928.

1,681,381 E. B. TOLMAN, JR

CONVEYER Filed July 5, 1924 .'5 Sheets-Sheet 3 Patented Aug. 21, 1928.

'UNITED 2straffas PATENT OFFICE...j

EDGAR B.":roI.IrA;N, JR., or CHICAGO, ILLINOIS.

f l .coNvnYEa Implication 'led July 5, 1924. Serial No. 724,473.

My invention [belongs fte that general class ofdevicesknownas conveying systems, and relates more particularly to a Jconveyer of the type fin `which lashfor other similar lmaterial `is'conveyed through asystem of piping ibetween `desired points :by a suction or a eadof steam, -air,\or the like. The present `invention more 'particularly `relates to certain pipe fittings and pipe to be used in such a system. The :invention has among its objects the production vof devices of the kind described which are simple, compact, convenient, "durable, feilicient, and satisfactory for use Fwherever `found applicable.

More particularlythe saine'has as anobject the production of fittings which will readily rmitfthe renewal ofparts with a minimum of diiicultyzand'effort and with a saving of time. Many 'other objects and advantages of the construction fherein shown and described Awill be obvious `to those skilled in the art from the disclosures herein given. To this end :my invention consistsin the novel construction, arrangement and 'combination ofparts herein shown and described, and .more Vparticularly pointed out in the claims. In the drawings, wherein rlike reference characters :indicate llike or corresponding parts.: I

v Fig. I1 is a 'side elevation -of la `portion of a system; f

Fig. 2 is` a sectional view etaken substanti'allymnlineQ-Q of Fig. 1'; IFig. f3 is Aafsectional view 'taken substantialliy -fon 'line 3 3 df Fig. 2

Fig. '4 is a sectional view taken substantially on Eline 11 --4-`offl`igf1 `I ".ig.-5is1a yiew `infelevat'on of 'a portion of the rconstructionrshown in Fig. 1;'

Fig. f6 l`fis fa side elevation illustrating a different. arrangement of the fittings; Fig. 17 ris a sectional view `taken substantially on line7-7 of Fig. 6:; and

Fig. i8 is ra'fsecti'onal Vview `taken substantially on line 8-8 of Fig.V 7. u

A"Referring-g to the drawings, which the preferred embodiment of the 'invention' is shown, 1 is fa conveying `pipe connected by the fittingsy to a continuing conveyer pipe 2, in the particular case illustrated, pipe 1 being horizontala'nd ipipe Qextending at right angle thereto, 'for "example, vertically, the particular angle 4and direction not neceseerily `bein'g as illustrated, as will ibe `clear `from the description hereinafter given.

In Fig. 1, pipes 1 and 2 are Vshown connected by the fittings 3, 4, 5 and 6, `part 3 being the elbow having a renewable wearback 7, as it is termed, suitably secured to the part 3. Part may be secured to the pipe 1 inany satisfactory manner, the usual construction consisting of flanges 8 and 9 on the respective parts secured together by bolts 10, 11 representing suitable packing at the joint. Fittings 4, 5 and 6 are also provided with what may be termed flanges, but the securing mea-ns, however, -coniiecting parts 3 and 6 and thereby securingthe other parts together will be hereinafter described.

. As most clearly shown in Fig. 3, the wear-v back 7 is preferably formed with an inclined surface 14 at the inner side, the degree of inclination being as desired and found most satisfactory for 'the purpose. Generally, it is preferred to construct parts 3 and 7 so that they interlock at their juncture and wearback 7 thereby accurately seated so that a tight joint is provided and dis# placement prevented. I have illustrated part 7 provided with a groove 15 and part 3 with a tongue or bead 16, 17 representing suitable packing arranged between the parts. The part`7 is secured to part 3 in a particularly simple, aswell as efficient manner, so that while the same is at all times held rigidly and securely in place, it may be quickly and easily detached for pu'iiposes of inspection and renewal. As shown, lugs 18 are provided on the part 3 and a,lug 19 on part 7, and the two parts secured together by a. U-shaped bail or bolt 2O which engages part 7 under the lug 19 at the loop with the ends extended through the lugs 18, nuts 24 being provided for securing the parts together. Lock nuts or washers may be provided at the ends of the U-shaped bolt if desired.

I have shown theelbow 3 provided with a nozzle `23 secured `in place in any suitable manner.` As shown,` this engages with the threaded insert 24: provided in the part 3. The method of securing 'the nozzle to the elbow, however, forms no part of the present invention and need not be described in detail.

It will be noted by referring to Fig. 1 that the fitting part 3 is provided with lugs 25and the part'G likewise provided with lugs 42, these being preferably as illustrated in Fig. 5, in which the lugs 42 are shown. The purpose of these lugs will be more fully explained hereinafter, but it may be mentioned, however, that in the assembly of the parts, as shown in Fig 1, the same form guides for the proper setting the intermediate sections on the fittings 3 and 6 respectively.

The fitting G may be secured to the pipe 2 in any suitable manner, the same being illustrated as substantially similar to the con-n nection of the fitting 3 to the pipe 1, 29 and 30 representing flanges on the respective parts which are connected by the bolts 31. To distinguish the several fittings 3 and 6 may be designated aspipe fittings and the intermediate (conveying means 4 and 5 designated as intermediate fittings or nuts. Between all of the fit-ting parts, I generally prefer to provide a. packing ring 32 of suitable material, which will afford a tight joint between the parts. As most clearly shown in Figs. 1, 2 and 4, the fitting 3 provided with lugs on opposite sides, generally with two sets 26 and 2T. while the fitting part 6 is provided with lugs 28 on the opposite sides. IWhile there may be any desired number of lugs, I have found that ordinarily two sets on opposite sides of the fitting are sufficient for the purpose. Parts 3 and 6 are connected by bolts 34-35 and adpustable turn buckles 36. As shown. bolt 34' is connected and extends through the lugs 26 and 27 and provided with nut-s 37 at the lower end. The bolts extend through the lugs 28 and are provided with nuts 38 at the upper end I prefer to arrange the shank portions 3f) and 40 extending through t-he respective lugs so that the bolts 34 and 35 are non-rotatably secured to the fittings so that when the turn buckles 36 are operated. as will be described, the bolts do not turn. The usual lock washers or lock nuts may be employed with the nuts 37 or 38, if desired. Then the parts are assembled, as shown in Figs. 1 and 2 parts 3, 4, 5 and 6 may be tightly and securely locked together by means of the bolts 34, 35 and turn buckles 36 so that the same to all intents and purposes form a unitary structure. There may be one or more of the intermediate fittings or units 4 and 5. In the event that it is desirable to inspect the intermediate portions 4 or 5 or to renew the same when worn, the turn buckles may be operated so as to release these parts and at the same time they serve as jacks, lifting parts 2 and 6 and the conveying pipes and fittings beyond or positively separating the same from the part 3 so that these parts 4 and 5 may be easily slipped out or returned or replaced. In this connection, it will be noted that I prefer to provide shoulders 41 on the bolts 34 and 35 so that a positive action is secured. It will thus be seen that the part of the system beyond G is substantially jacked away trom the part 3 and maintained separated there'- from although the parts are always connected and remain in alignment and may be quickly brought back to place. It is unnecessary to provide other packing means or support as pipes 2 and 1 are securely maintained against displacement at all times and may be positively separated or brought together in a minium oi time and with a minimum of labor. While this feature is particularly desirable in the case of. connecting a vertical riser 2 to the pipe 1, it is also desirable where bothv pipes extend hori- Zontally or at any other angle. It will be noted that this method of connection is not limited to a right angle elbow similar to the elbow 3 shown, nor is the wear-back retain ing means limited tosuch ay fitting. The same may be employed with equal advantage on other styles of fittings, and may be employed in many cases for other installations than on ash or like conveying systems.

In Fig. G, 43 represents a riser and 44 a substantially horizontally extending pipe, it being understood that the pipes may be arranged at any desired angle, the fittings being correspondingly designed. In this case, the saine fitting 3 with the wear-back 7 and fitting G may be employed. In this particular arrangement, however, I generally prefer to employ but one intermediate unit or section 45 in place of the two scctions 4 and 5, as shown in Fig. 1. I have also shown a supplemental support 4G provided with a yoke 47, this support being either temporary or permanent as maybe desired. VVith this particular construction, when it is desired to replace or remove part 45, parts 3 and G are jacked apart in the manner previously described, whereupon the part 45 may be removed. It will be vnoted that the lugs 25 and 42 serve to conveniently support the section 45 between the fittings when the fittings are jacked apart. It is thus unnecessary for the repair man or mechanic to support a heavy fitting 45 while operating the turn buckles. IVhile the turn buckle bolts connecting the parts 3 and 6 together will, to a large extent, support the fitting 6 and pipe 44, the supplemental su port 46, if employed, takes some of tlge strain ott' ot the parts. This is particularly truc where the line of piping 44 may be of considerable length. Obviously, any equivalent, such as a hanger suspended from above or from the side would serve the same function.

From the preceding, it will be seen that I have provided an exceedingly convenient, as well as an economical construction. In the particular case illustrated, lI have shown a shortened elbow so that the body will receive no wear from the rebound of the material from the wear-back. The securing of the wear-back section by the U-bolt construction shown makes possible the easy and quick removal of the wear-back for Vinspection or replacement. It will be articularly noted with this construction t at it is so convenient to control the jacking of the parts away from each other that the intermediate wear sections can be renewed or they can be inverted or interchanged at certain periods so that wear is distributed over the entire surface. lVhile one or more sections can be used, there are no bolt lugs and bolt holes on the two sections, so that the neutral metal is small, the jacks making the changing of the sections very simple. The

lugs referred to provide for easy centering or alignment of the parts, and also provide a convenient support when the line pipe is horizontal, as shown in Fig. 6.

As previously mentioned, I do not wish t-o be understood as limiting myself to the particular type of fittings shown, tO-wit, a straight and right angle fitting, as this is immaterial in so far as the construction herein illustrated and described is concerned.

The fittings 4, 5 and 45 are extremely simple and may be economically manufactured. It will also be noted that the time required in connecting up or disconnecting the pipes to renew or replace parts is materially shortened as only two turn buckles are required, while in Fig. 2, if flanges and bolts were provided between the several fittings, for example, four bolts at each joint, there would be twelve bolts and nuts tov handle as compared with the two turn buckles and bolts shown. With this construction, the

arts are always connected together, while 1n the other it is necessary to align the bolt holes, etc.

Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence I do not wish to be understood as limiting myself to the exact form, construction, arrangement and combination ofparts herein shown and described o1' uses mentioned. Y

What I claim as newv and desire to secure by Letters Pat-ent is:

1. Connecting fittings for conveying system pipes consisting of a pipe fitting for the adjacent ends of each of two pipes, an intermediate fitting arranged between said f1ttings, means on said pipe fittings for align ing said intermediate fitting, each )ipe fitting provided with rods non-rotata ly car ried thereby and extending toward the other fitting, said rods provided with threads at their adjacent ends, extending in opposite directions, and connecting members in threaded engagement with said adjacent ends'and connecting the said rods for forci bly separating or contracting the fittings to release or secure the said intermediate fittings.

2. Connecting fittings for conveying system pipes consisting of a pair of fittings, one foi` the adjacent ends of .each of two pipes, said fittings provided with means for securing the same to said pipes, an intermediate fitting unit arranged between said fittings, means on said pipe fittings for aligning said fittings and unit, each pipe fitting provided with a rod non-rotatably carried thereby and extending toward the other pipe fitting, said rods oppositely threaded at their adjacent ends, and means connecting said rods and in threaded engagement therewith whereby to forcibly separate or contract the pair ,of fittings to secure or release the intermediate fitting unit.

In testimony whereof, I have hereunto signed by name.

EDGAR B. TOLMAN, Jn. 

